Determine the equivalent resistance between terminals a and b. a O 13.9765 Q O 14.9765 Q O 13.2543 Q O 13.0741 Q R1 10 Ohms R3 ww 5 Ohms R4 ww 13 Ohms R2 ww 12 Ohms R5 ww 7 Ohms R6 www 6 Ohms -b
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- Electric current I enters a node with three resistors connected in parallel (Fig. CQ18.5). Which one of the following is correct? (a) I1 = I and I2 = I3 = 0. (b) I2 I1 and I2 I3. (c) V1 V2 V3 (d) I1 I2 I3 0. Figure CQ18.5A child’s electronic toy is supplied by three 1.58-V alkaline cells having internal resistances of 0.0200 in series with a 1.53-V carbon-zinc dry cell having a 0.100- internal resistance. The load resistance is 10.0 . (a) Draw a circuit diagram of the toy and its batteries, (b) What current flows? (c) How much power is supplied to the load? (d) What is the internal resistance of the dry cell if it goes bad, resulting in only 0.500 W being supplied to the load?A 10.00-meter long wire cable that is made of copper has a resistance of 0.051 ohms, (a) What is the weight if the wire was made of copper? (b) What is the weight of a 10.00-meter-long wire of the same gauge made of aluminum? (c)What is the resistance of the aluminum wire? The density of copper is 8960 kg/m3 and the density of aluminum is 2760 kg/m3.
- Lightbulb A is marked 25.0 W 120. V, and lightbulb B is marked 100. W 120. V. These labels mean that each lightbulb has its respective power delivered to it when it is connected to a constant 120.-V source. (a) Find the resistance of each lightbulb. (b) During what time interval does 1.00 C pass into lightbulb A? (c) Is this charge different upon its exit versus its entry into the lightbulb? Explain. (d) In what time interval does 1.00 J pass into lightbulb A? (e) By what mechanisms does this energy enter and exit the lightbulb? Explain. (f) Find the cost of running lightbulb A continuously for 30.0 days, assuming the electric company sells its product at 0.110 per kWh.A conductor has radius of 1.50 cm. How many centimeters of a material with 3.00 x 10^-2 Ω•m conductivity would be needed to yield a resistance of 4.50 ohms? A. 10.60827521 centimeters B. 10.60287521 centimeters C. 10.06287521 centimeters D. 10.62087521 centimetersGiven the following circuit, find the equivalent resistance and the electric current that passes through resistor R7. The resistance values are R1= 10 oms (Ω), R2= 15 oms, R3= 5 oms, R4= 25 oms, R5= 10 oms, R6= 10 oms, R7= 20 oms (The supply voltage is 10 volts)
- Determine the equivalent resistance in series and parallel using the following given data: R1 = 6.77 Ω, R2 = 8.05 Ω,R3 = 7.83 Ω, R4 = 4.27 Ω, R5 = 6.01 Ω, R6 = 14.50 Ω, and R7 = 3.06 ΩA wire of initial length L0 and radius r0 has a measured resistance of 3 Ohms. The wire is drawn under tensile stress to a new uniform radius of r = 0.1r0. What is the new resistance of the wire?Hint: Assume the radius and the length of the wire can change. A) 48,000 Ohms B) 16,666.67 Ohms C) 86,400 Ohms D) 30,000 OhmsPhysics Worksheet What is the resistance of 20 m of silver wire that is 2 mm in diameter? 0.584 Ohms 0.746 Ohms 0.084 Ohms 0.101 Ohms What is the resistance of a 3.0 m length of copper wire 1.5 mm in diameter? 0.062 Ohms 0.044 Ohms 0.029 Ohms 0.075 Ohms What is the diameter of a 1.00 m length of tungsten wire whose resistance is 0.22 Ω? 1.3 x 10^-4 m 5.7 x 10^-4 m 6.5 x 10^-4 m 4.2 x 10^-4 m What is the diameter of a 2.00 m length of gold wire whose resistance is 2.4 Ω? 3.36 x 10^-4 m 7.64 x 10^-4 m 1.61 x 10^-4 m 4.51 x 10^-4 m What is the length of a 2 mm diameter platinum wire whose resistance is 1.5 Ω? 44.5 m 48.7 m 56.7 m 15.3 m What is the resistance of a resistor with the following colors: orange, blue, violet, and gold? 36 x 10^7 +- 5% 50 x 10^4 +- 5% 63 x 10^8 +- 5% 53 x 10^6 +- 5% What is the resistance of a resistor with the following colors: red, yellow, green, and silver? 88 x 10^2 +- 10% 24 x 10^5 +- 10% 39 x 10^2 +- 10% 62 x 10^2 +- 10% What is the…
- What is the total power delivered by the 16-volt battery in the circuit below? V1 = 16 volts, V2 = 20 volts, R1 = 7.0 Ω, R2 = 3.0 Ω, and R3 = 2.0 Ω, a. 24 watts b. 36 watts c. 48 watts d. 60 watts e. 12 watts1) A wire of initial length L0 and radius r0 has a measured resistance of 3 Ohms. The wire is drawn under tensile stress to a new uniform radius of r = 0.1r0. What is the new resistance of the wire? Assume the radius and the length of the wire can change. 30,000 Ohms 86,400 Ohms 16,666.67 Ohms 48,000 Ohms 2) A lightbulb marked “50 W [at] 120 V” is screwed into a socket at one end of a long extension cord in which each of the two conductors has a resistance of 0.6 Ohms. The other end of the extension cord is plugged into a 120-V outlet. Find the actual power of the bulb in the circuit described. Hint: You have three objects in a series circuit. Two of them are the conductors and the other object is the light bulb. 49.59 W 100 W 288 W 119.5 WDetermine the equivalent resistance in parallel using the following data that follows: R1 = 17.15 Ω, R2 = 19.45 Ω, R3 = 2.0 Ω, R4 = 19.99 Ω, and R5 = 43.22 Ω